CS183029B1 - Light amount measuring circuit - Google Patents

Light amount measuring circuit

Info

Publication number
CS183029B1
CS183029B1 CS881874A CS881874A CS183029B1 CS 183029 B1 CS183029 B1 CS 183029B1 CS 881874 A CS881874 A CS 881874A CS 881874 A CS881874 A CS 881874A CS 183029 B1 CS183029 B1 CS 183029B1
Authority
CS
Czechoslovakia
Prior art keywords
light amount
measuring circuit
amount measuring
circuit
light
Prior art date
Application number
CS881874A
Other languages
Czech (cs)
Inventor
Siegfried Leuschke
Original Assignee
Siegfried Leuschke
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siegfried Leuschke filed Critical Siegfried Leuschke
Publication of CS183029B1 publication Critical patent/CS183029B1/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/10—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void
    • G01J1/16—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void using electric radiation detectors
    • G01J1/18—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void using electric radiation detectors using comparison with a reference electric value
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B27/00—Photographic printing apparatus
    • G03B27/72—Controlling or varying light intensity, spectral composition, or exposure time in photographic printing apparatus
CS881874A 1973-12-27 1974-12-20 Light amount measuring circuit CS183029B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DD17563373A DD109744A1 (en) 1973-12-27 1973-12-27

Publications (1)

Publication Number Publication Date
CS183029B1 true CS183029B1 (en) 1978-05-31

Family

ID=5494069

Family Applications (1)

Application Number Title Priority Date Filing Date
CS881874A CS183029B1 (en) 1973-12-27 1974-12-20 Light amount measuring circuit

Country Status (6)

Country Link
CS (1) CS183029B1 (en)
DD (1) DD109744A1 (en)
DE (1) DE2453951A1 (en)
FR (1) FR2256400B3 (en)
GB (1) GB1470866A (en)
SU (1) SU567099A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2136135B (en) * 1983-03-11 1987-06-03 Johnson Matthey Plc Calibration warning apparatus
FI119893B (en) * 2007-03-16 2009-04-30 Risto Hedman Diagnosis of an electronic sensor

Also Published As

Publication number Publication date
GB1470866A (en) 1977-04-21
FR2256400B3 (en) 1977-09-23
FR2256400A1 (en) 1975-07-25
SU567099A1 (en) 1977-07-30
DD109744A1 (en) 1974-11-12
DE2453951A1 (en) 1975-07-10

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